水草情迷

本人新手想問水草缸加魚須唔須要養氣

唔需要,但係需要對水

可否講下你水草缸的設備

魚釋放出來的二氧化碳太少了,所以不需要氧氣,只需要二氧化碳

大自然的環境中有很多微生物也都在使用植物散發出來的氧氣,所以大自然比較缺氧氣,但是我們的生態缸裡面只有魚,水裡面沒有很多需要氧氣的生物(除了nitrobactor益菌以外),因此就不缺氧氣

唔需要

咁如果夜晚呢? 我夜晚有開番少少氧氣架~~我驚佢地唔夠氧~~我0個幾條係大神仙~~~唔知係米要吸多 D~~

其實每種生物都要氧氣, 缸裡也好, 大自然也好, 每一處都是微生物, 當然唔只得nitrobacter啦, 大自然絕不會缺氧, 除非在紅潮時有大量海藻生長, 大自然的氧是來自水流的, 有水的流動, 氧氣就會溶於水中, 人常常說水草缸不必打氣是因為光照時水草做出來的氧份能足夠夜晚用, 言且這也是相對的, 草的多小啦, 缸的水流, 魚的大小和多小都影響著晚上的氧份需要架

Oxygen in aquarium comes from:
a) Diffusion of oxygen from water surface.
b) Water current in filter
c) Oxygen from plant

Therefore even when there is no plant in your aquarium, additional air supply from air pump may not required because of the sources of oxygen from a) and b). However when the aquarium is too overcrowded with fish, oxygen from a) and b) will not be enough.

For item c): In fact all living organism, including plant, consume oxygen in metabolism. When there is enough light, plant will release oxygen because the oxygen generated from photosynthesis is more than the oxygen consumed by the plant. If there is not enough light in the day time and your aquarium is crowded with both plant and fish, the plant will use up oxygen and make your fish suffocate during the night.